¶1OPINION
¶2This appeal arises from a will contest, brought by the appellants, Marcia Campbell and Max T. Hirdler, Jr., to the will of Blanche L. Stout, deceased. Appellants contest the validity of the will on two grounds: an exertion of undue influence and lack of testamentary capacity. The jury answered issues in favor of appellees and the trial court admitted the will to probate.
¶3Blanche Stout executed a formal will in her attorney’s office in May, 1967. The decedent’s sister, Pauline Campbell (now also deceased), was visiting Mrs. Stout at the time she executed the will. It is Pauline Campbell’s alleged influence over Mrs. Stout which is being contested. In her will, the decedent devised an option to purchase certain land and mineral rights to certain relatives, not parties to this appeal; bequeathed certain specific items to named individuals not parties to this appeal; a typewriter to Mrs. John Boyd; all her wearing apparel, linens, dishes, and silverware to Pauline E. Campbell and her daughter, Marcia Campbell; one-half of the residuary estate to her brother, Max T. Hirdler, Sr., and his wife, or to Marcia Campbell should Max T. Hirdler or his wife not survive the testatrix; and the remaining one-half of the residuary estate to her cousin, Lena Ann Higgins and her husband. The decedent appointed Mary Ann Boyd independent executrix of the estate. In January, 1972, Mrs. Stout suffered a blow to her head. She was treated at a hospital emergency room and admitted to the hospital for overnight observation. Mrs. Stout died in July, 1981.
¶4Appellants complain on appeal that the trial court erred in his jury instruction by commenting on the weight of the evidence and that the trial court erroneously excluded certain evidence.
¶5The trial court instructed the jury that “[a] person of sound mind has the legal right to dispose of his property as he wishes; and, it is immaterial that the jury may feel the disposition of the property should have been different” (emphasis added). Appellants complain the trial court directly commented on the weight of the evidence in his wording of this instruction. They claim the underscored language precluded the jury from considering evidence of undue influence because part of the proof to establish undue influence is the fact that the disposition is an unnatural one.
¶6The trial judge may not directly comment on the weight of the evidence. TEX.R.CIV.P. 277. A comment on the weight of the evidence occurs when the judge assumes the truth of a material con*730troverted fact, or exaggerates, minimizes, or withdraws some pertinent evidence from the jury’s consideration. Alvarez v. Missouri-Kansas-Texas Railroad Co., 683 S.W.2d 376, 377 (Tex.1984); 3 R. McDONALD, TEXAS CIVIL PRACTICE § 12.03.2 (1983 rev. ed.). In deciding whether an instruction constitutes an impermissible comment on the weight of the evidence, we consider the charge as a whole. Furthermore, not every comment is a ground for reversal. It must be one that would probably cause the rendition of an improper judgment. Alvarez v. Missouri-Kansas-Texas Railroad Co., supra; TEX.R.CIV.P. 434. The court may incidentally comment when necessary or proper as part of an explanatory instruction or definition. Board of Regents of North Texas State University v. Denton Construction Co., 652 S.W.2d 588, 595 (Tex.App.—Fort Worth 1983, writ ref’d n.r.e.).
¶7We must consider the court’s entire charge to the jury. The trial court further instructed the jury that:
‘Undue influence’ as used in this charge is such influence or domination by excessive importunities, imposition or fraud exercised at the time of the making of said instrument, as destroys the free agency of the testator and overcomes his wishes in regard to the disposition of his property to such an extent that the instrument does not in fact express his wishes as to the disposition of his property, but those of the person exercising such influence_[and] that it was exercised with respect to the making and execution of the will.
¶8The trial court properly charged the jury on the issue of undue influence.
¶9Appellants complain the trial court erred in refusing to admit into evidence a letter written by Dr. Robert Partain concerning Mrs. Stout’s mental condition. In the letter, written in 1972 subsequent to Mrs. Stout’s head injury, Dr. Partain states that Mrs. Stout suffers from severe organic mental syndrome and should be under custodial care. The doctor further states that “[ojther history was obtained from a Mrs. Odom, who was the patient’s landlady, and a Mrs. Boyd, who had been a friend and companion of Mrs. Stout for the last fifteen years. According to these ladies, Mrs. Stout has experienced progressive difficulty with memory for the past six years.” Dr. Partain signed the letter but did not attest it. Dr. Partain did not testify in court or by deposition. Appellants contend the letter is admissible because it is not too remote in time to be relevant; the letter is part of the probate court records in a prior guardianship proceeding concerning Mrs. Stout; the letter is a business record; the statements by Mrs. Boyd are admissions of a party opponent and therefore an excep*731tion to the hearsay rule; the statements were made for the purpose of receiving medical treatment; and the physician may give his opinion if not based wholly on hearsay.
¶10We will first determine whether the letter itself is admissible. To be admissible as part of the business records exception to the hearsay rule, the proponent of the document must establish that it was made in the regular course of business; it was the regular course of business for an employee with knowledge of the act, event, or condition to make the memorandum; and that it was made at or near the time of the act, event, or condition, or reasonably soon thereafter. TEX.REV.CIV.STAT. ANN. art. 3737e (Vernon Supp.1985).
¶11Article 3726 permits an instrument allowed or required by law to be filed with the county clerk, and which has been on file ten years, to be admitted into evidence without the necessity of proving its execution. TEX.REV.CIV.STAT.ANN. art. 3726 (Vernon Supp.1985).
¶12We do not consider whether the statements by Mrs. Boyd are properly admissible under the admissions of a party opponent exception to the hearsay rule. Dr. Partain’s letter is hearsay because it is not admissible as a medical or business record or as a court record. His statement as to what Mrs. Boyd may have said is inadmissible hearsay. Finn v. Finn, 658 S.W.2d 735, 745 (Tex.App.—Dallas 1983, writ ref’d n.r.e.); Day & Zimmermann, Inc. v. Strickland, 483 S.W.2d 541, 546 (Tex.Civ.App.—Texarkana 1972, writ ref’d n.r.e.).
¶13The judgment of the trial court is affirmed.
¶14. Appellees urge that appellant Campbell preserved error only as to the underscored portion of the instruction and that appellant Max T. Hirdler failed to preserve error as to any of the instruction. Because we find no error in the giving of this instruction, we feel no need to determine whether appellants’ objections are sufficient to preserve appellate review.
¶15. To prove undue influence the contestant must prove (1) the existence and exertion of an influence; (2) the effective operation of such influence so as to subvert or overpower the mind of the testator at the time of the execution of the testament; and (3) the execution of a testament which the maker thereof would not have executed but for such influence. Rothermel v. Duncan, 369 S.W.2d 917, 922 (Tex.1963). An unnatural disposition is a circumstance to be considered in finding undue influence, (id. at 923), however, that alone is insufficient. In re Estate of Price, 401 S.W.2d 98, 102 (Tex.Civ.App.—El Paso 1966, writ ref d n.r.e.). The jury must also find the existence and exertion of an influence which overcomes the testator’s will and a testament produced which expresses the will of the one exerting the influence. Rothermel v. Duncan, supra.
¶16. Article 3737e was repealed in so far as civil causes are concerned effective September 1, 1983. However, trial of this cause occurred prior to the effective date of the repeal.
¶17. Article 3726 was repealed, in so far as it affects civil causes, effective September 1, 1983, subsequent to trial of this suit.